protected virtual bool Send(byte[] data, int len)
{
byte[] sessionBytes = BitConverter.GetBytes(SessionID);
if (BitConverter.IsLittleEndian)
{
Array.Reverse(sessionBytes);
}
Array.Copy(sessionBytes, 0, data, 2, 4);
byte[] unaBytes = BitConverter.GetBytes(_una);
if (BitConverter.IsLittleEndian)
{
Array.Reverse(unaBytes);
}
Array.Copy(unaBytes, 0, data, 6, 4);
UInt16 checksum = CRCCheck.crc16(data, 2, len);
byte[] checksumBytes = BitConverter.GetBytes(checksum);
if (BitConverter.IsLittleEndian)
{
Array.Reverse(checksumBytes);
}
Array.Copy(checksumBytes, 0, data, 0, 2);
return(false);
}
protected virtual bool Recv(ref byte[] data, ref int len)
{
byte[] checksumBytes = new byte[2] {
data[0], data[1]
};
if (BitConverter.IsLittleEndian)
{
Array.Reverse(checksumBytes);
}
UInt16 checksum = BitConverter.ToUInt16(checksumBytes, 0);
UInt16 calChecksum = CRCCheck.crc16(data, 2, len);
if (checksum != calChecksum)
{
data = null;
len = 0;
}
return(true);
}
